<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>

  </style>
</head>
<body>
  <form action="" class="form-example">
    <!-- 我是最普通的输入框 -->
    <input type="text" required>
    <!-- 密码 -->
    <input type="password" required>
    <!-- url类型 -->
    <input type="url" required>
    <!-- 时间 -->
    <input type="date">
    <!-- 数字 -->
    <input type="number">
    <!-- 邮件 -->
    <input type="email">  
    <div class="form-example">
      <input type="submit" value="Subscribe!" />
    </div>
  </form>
</body>
</html>